This problem did not occurred firefox versions prior to 50.1.0. Reproducible: Always Steps to Reproduce: 1. Emerge www-client/firefox-50.1.0 without USE="gtk2" 2. Start firefox with new profile 3. <alt>-f a (File -> Save Page As...) 4. Wait a while or try to save the page Actual Results: The file dialog is opened but after a few seconds the system freezes completely and is not reacting on keyboard or mouse input. Even Magic SysRq key have no effect. Expected Results: The System should not freeze. emerge --info laymansync module's module_spec is old, missing attribute: 'sourcefile'. Backward compatibility may be removed in the future. File: /usr/lib64/python3.4/site-packages/portage/sync/modules/laymansync/__init__.py Portage 2.3.0 (python 3.4.5-final-0, default/linux/amd64/13.0, gcc-4.9.3, glibc-2.23-r3, 4.4.39-gentoo x86_64) ================================================================= System uname: Linux-4.4.39-gentoo-x86_64-Intel-R-_Core-TM-_i7-3632QM_CPU_@_2.20GHz-with-gentoo-2.3 KiB Mem: 8050200 total, 4074472 free KiB Swap: 8035324 total, 7671388 free Timestamp of repository gentoo: Sat, 07 Jan 2017 09:45:01 +0000 sh bash 4.3_p48-r1 ld GNU ld (Gentoo 2.25.1 p1.1) 2.25.1 distcc 3.2rc1 x86_64-pc-linux-gnu [disabled] ccache version 3.2.4 [disabled] app-shells/bash: 4.3_p48-r1::gentoo dev-java/java-config: 2.2.0-r3::gentoo dev-lang/perl: 5.22.3_rc4::gentoo dev-lang/python: 2.7.12::gentoo, 3.4.5::gentoo dev-util/ccache: 3.2.4::gentoo dev-util/cmake: 3.6.3::gentoo dev-util/pkgconfig: 0.28-r2::gentoo sys-apps/baselayout: 2.3::gentoo sys-apps/openrc: 0.22.4::gentoo sys-apps/sandbox: 2.10-r1::gentoo sys-devel/autoconf: 2.13::gentoo, 2.69::gentoo sys-devel/automake: 1.11.6-r1::gentoo, 1.12.6::gentoo, 1.14.1::gentoo, 1.15::gentoo sys-devel/binutils: 2.25.1-r1::gentoo sys-devel/gcc: 4.9.3::gentoo, 5.3.0::gentoo sys-devel/gcc-config: 1.7.3::gentoo sys-devel/libtool: 2.4.6-r2::gentoo sys-devel/make: 4.1-r1::gentoo sys-kernel/linux-headers: 4.4::gentoo (virtual/os-headers) sys-libs/glibc: 2.23-r3::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.europe.gentoo.org/gentoo-portage priority: -1000 user_overlay location: /usr/local/portage masters: gentoo priority: 0 g-cpan location: /var/lib/g-cpan masters: gentoo priority: 1 arduino-overlay location: /usr/local/arduino-overlay sync-type: git sync-uri: https://github.com/maurerpe/arduino-overlay.git masters: gentoo priority: 50 crossdev location: /var/lib/layman/crossdev sync-type: laymansync sync-uri: git://github.com/alphallc/crossdev masters: gentoo priority: 50 enlightenment location: /var/lib/layman/enlightenment sync-type: laymansync sync-uri: git://anongit.gentoo.org/proj/enlightenment.git masters: gentoo priority: 50 flow location: /var/lib/layman/flow sync-type: laymansync sync-uri: https://gitlab.com/Flow/flow-s-ebuilds.git masters: gentoo priority: 50 java location: /var/lib/layman/java sync-type: laymansync sync-uri: git://anongit.gentoo.org/proj/java.git masters: gentoo priority: 50 johu location: /var/lib/layman/johu sync-type: laymansync sync-uri: git://anongit.gentoo.org/dev/johu.git masters: gentoo priority: 50 mrueg location: /var/lib/layman/mrueg sync-type: laymansync sync-uri: git://anongit.gentoo.org/dev/mrueg.git masters: gentoo priority: 50 sunrise location: /var/lib/layman/sunrise sync-type: laymansync sync-uri: git://anongit.gentoo.org/proj/sunrise-reviewed.git masters: gentoo priority: 50 tox-overlay location: /var/lib/layman/tox-overlay sync-type: laymansync sync-uri: git://github.com/Tox/gentoo-overlay-tox.git masters: gentoo priority: 50 ABI="amd64" ABI_X86="64" ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="* -@EULA PUEL dlj-1.1 sun-bcla-java-vm skype-eula skype-4.0.0.7-copyright AdobeFlash-10.1 AdobeFlash-10.3 cadsoft EULA Oracle-BCLA-JavaSE AdobeFlash-11.x Intel-SDP yEd-1.1 RAR" ACCEPT_PROPERTIES="*" ACCEPT_RESTRICT="*" ALSA_CARDS="hda-intel" ANDROID_HOME="/opt/android-sdk-update-manager" ANDROID_SWT="/usr/share/swt-3.7/lib" ANT_HOME="/usr/share/ant" APACHE2_MODULES="*" APACHE2_MPMS="worker" ARCH="amd64" AUTOCLEAN="yes" BOOTSTRAP_USE="cxx unicode internal-glib python_targets_python3_4 python_targets_python2_7 multilib" BROWSER="/usr/bin/firefox" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="adc65 agfa_cl20 aox barbie canon casio_qv clicksmart310 digigr8 digita dimagev dimera3500 directory enigma13 fuji gsmart300 hp215 iclick jamcam jd11 kodak_dc120 kodak_dc210 kodak_dc240 kodak_dc3200 kodak_ez200 konica konica_qm150 largan lg_gsm mars mustek panasonic_coolshot panasonic_dc1000 panasonic_dc1580 panasonic_l859 pccam300 pccam600 polaroid_pdc320 polaroid_pdc640 polaroid_pdc700 ptp2 ricoh ricoh_g3 samsung sierra sipix_blink sipix_blink2 sipix_web2 smal sonix sony_dscf1 sony_dscf55 soundvision spca50x sq905 stv0674 stv0680 sx330z template toshiba_pdrm11 jl2005a topfield ax203 st2205 jl2005c tp6801 pentax" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe -march=core-avx-i -mtune=core-avx-i" CFLAGS_amd64="-m64" CFLAGS_x32="-mx32" CFLAGS_x86="-m32" CHOST="x86_64-pc-linux-gnu" CHOST_amd64="x86_64-pc-linux-gnu" CHOST_x32="x86_64-pc-linux-gnux32" CHOST_x86="i686-pc-linux-gnu" CLEAN_DELAY="5" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" COLLISION_IGNORE="/lib/modules/* *.py[co] *$py.class */dropin.cache" CONFIG_PROTECT="/etc /usr/lib64/libreoffice/program/sofficerc /usr/share/config /usr/share/gnupg/qualified.txt /var/lib/redmine/config" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.6/ext-active/ /etc/php/cgi-php5.6/ext-active/ /etc/php/cli-php5.6/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c /var/lib/redmine/config/locales /var/lib/redmine/config/settings.yml" CPU_FLAGS_X86="aes avx mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" CXXFLAGS="-O2 -pipe -march=core-avx-i -mtune=core-avx-i" DBUS_SESSION_BUS_ADDRESS="unix:abstract=/tmp/dbus-jf6BN4ACRl,guid=aef403a5ff9586f36df0b20358714d3c" DCC_EMAILLOG_WHOM_TO_BLAME="" DEFAULT_ABI="amd64" DISPLAY=":0.0" DISTCC_DIR="/var/tmp/.distcc" DISTCC_ENABLE_DISCREPANCY_EMAIL="" DISTCC_FALLBACK="1" DISTCC_SAVE_TEMPS="0" DISTCC_SSH="" DISTCC_TCP_CORK="" DISTCC_VERBOSE="0" DISTDIR="/usr/portage/distfiles" DVB_CARDS="pvrusb2" EDITOR="/usr/bin/vim" ELIBC="glibc" EMERGE_DEFAULT_OPTS="--quiet-build --columns --verbose=y --load-average=3.6 --autounmask-write --jobs 4" EMERGE_WARNING_DELAY="10" EPREFIX="" EROOT="/" EV3_HOME="/home/user/EV3/lejos/current" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FETCHCOMMAND="wget -t 3 -T 60 --passive-ftp -O "${DISTDIR}/${FILE}" "${URI}"" FETCHCOMMAND_RSYNC="rsync -avP "${URI}" "${DISTDIR}/${FILE}"" FETCHCOMMAND_SFTP="bash -c "x=\${2#sftp://} ; host=\${x%%/*} ; port=\${host##*:} ; host=\${host%:*} ; [[ \${host} = \${port} ]] && port= ; eval \"declare -a ssh_opts=(\${3})\" ; exec sftp \${port:+-P \${port}} \"\${ssh_opts[@]}\" \"\${host}:/\${x#*/}\" \"\$1\"" sftp "${DISTDIR}/${FILE}" "${URI}" "${PORTAGE_SSH_OPTS}"" FETCHCOMMAND_SSH="bash -c "x=\${2#ssh://} ; host=\${x%%/*} ; port=\${host##*:} ; host=\${host%:*} ; [[ \${host} = \${port} ]] && port= ; exec rsync --rsh=\"ssh \${port:+-p\${port}} \${3}\" -avP \"\${host}:/\${x#*/}\" \"\$1\"" rsync "${DISTDIR}/${FILE}" "${URI}" "${PORTAGE_SSH_OPTS}"" FFLAGS="-O2 -pipe" GCC_SPECS="" GCPAN_OVERLAY="/var/lib/g-cpan" GDM_LANG="de_DE.UTF-8" GENTOO_MIRRORS="ftp://mirror.switch.ch/mirror/gentoo/ http://distfiles.gentoo.org http://www.ibiblio.org/pub/Linux/distributions/gentoo" GIT_PS1_SHOWDIRTYSTATE="1" GNOME_KEYRING_CONTROL="/home/user/.cache/keyring-IOJXTY" GNUPLOT_LIB=":~/.gnuplot.d:~/.gnuplot.d:~/.gnuplot.d" GPG_AGENT_INFO="/tmp/gpg-vD8Vn0/S.gpg-agent:7533:1" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" GRUB_PLATFORMS="" GSETTINGS_BACKEND="dconf" GTK_MODULES="canberra-gtk-module:canberra-gtk-module" GUILE_LOAD_PATH="/usr/share/guile/1.8" HISTFILESIZE="5000" HOME="/home/user" INFOPATH="/usr/share/info:/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.3/info:/usr/share/binutils-data/x86_64-pc-linux-gnu/2.25.1/info" INPUT_DEVICES="evdev keyboard mouse joystick synaptics" IUSE_IMPLICIT="abi_x86_64 prefix prefix-guest" JAVAC="/home/user/.gentoo/java-config-2/current-user-vm/bin/javac" JAVA_HOME="/home/user/.gentoo/java-config-2/current-user-vm" JDK_HOME="/home/user/.gentoo/java-config-2/current-user-vm" KERNEL="linux" L10N="en de" LADSPA_PATH="/usr/lib64/ladspa" LANG="C" LANGUAGE="en_US:en:de_DE:de" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LC_ADDRESS="de_DE.UTF-8" LC_COLLATE="C" LC_CTYPE="de_DE.UTF-8" LC_IDENTIFICATION="de_DE.UTF-8" LC_MEASUREMENT="de_DE.UTF-8" LC_MESSAGES="C" LC_MONETARY="de_DE.UTF-8" LC_NAME="de_DE.UTF-8" LC_NUMERIC="de_DE.UTF-8" LC_PAPER="de_DE.UTF-8" LC_TELEPHONE="de_DE.UTF-8" LC_TIME="de_DE.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LDFLAGS_amd64="-m elf_x86_64" LDFLAGS_x32="-m elf32_x86_64" LDFLAGS_x86="-m elf_i386" LESS="-R -M --shift 5 -S~gisw" LESSOPEN="|lesspipe %s" LESS_TERMCAP_mb="" LESS_TERMCAP_md="" LESS_TERMCAP_me="" LESS_TERMCAP_se="" LESS_TERMCAP_so="" LESS_TERMCAP_ue="" LESS_TERMCAP_us="" LIBDIR_amd64="lib64" LIBDIR_amd64_fbsd="lib64" LIBDIR_arm="lib" LIBDIR_arm64="lib64" LIBDIR_n32="lib32" LIBDIR_n64="lib64" LIBDIR_o32="lib" LIBDIR_ppc="lib32" LIBDIR_ppc64="lib64" LIBDIR_s390="lib32" LIBDIR_s390x="lib64" LIBDIR_sparc32="lib32" LIBDIR_sparc64="lib64" LIBDIR_x32="libx32" LIBDIR_x86="lib32" LIBDIR_x86_fbsd="lib32" LIBREOFFICE_EXTENSIONS="wiki-publisher nlpsolver pdfimport presenter-console presenter-minimizer" LINGUAS="en de" LIRC_DEVICES="hauppauge hauppauge_dvb" LOGNAME="user" LS_COLORS="rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=01;05;37;41:mi=01;05;37;41:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arc=01;31:*.arj=01;31:*.taz=01;31:*.lha=01;31:*.lz4=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.tzo=01;31:*.t7z=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.dz=01;31:*.gz=01;31:*.lrz=01;31:*.lz=01;31:*.lzo=01;31:*.xz=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.alz=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.cab=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.ogv=01;35:*.ogx=01;35:*.cfg=00;32:*.conf=00;32:*.diff=00;32:*.doc=00;32:*.ini=00;32:*.log=00;32:*.patch=00;32:*.pdf=00;32:*.ps=00;32:*.tex=00;32:*.txt=00;32:*.aac=00;36:*.au=00;36:*.flac=00;36:*.m4a=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.oga=00;36:*.opus=00;36:*.spx=00;36:*.xspf=00;36:" MAIL="/var/mail/user" MAKEOPTS="-j9" MANPAGER="manpager" MANPATH="/home/user/.gentoo/java-config-2/
I am unable to duplicate your issue. I will investigate but will need and strace -f firefox from you please.
Created attachment 459532 [details] Archive containing strace output Archive containing files generated with 'strace -ff -o firefox.strace firefox -P new-profile'. I used a newly created profile. All I did was saving the Firefox Startpage (Save Page). It took some seconds until the system froze.
Created attachment 459534 [details] Archive containing downloaded start page All files are empty. Maybe it helps to identify the relevant parts of the strace output
I had a lot of recurring file system errors when this problems arouse. After re-installing Gentoo from scratch, I cannot reproduce the problem any more.
